| http://www.w3.org/ns/prov#value | - Naturally oil companies balked at a windfall profit tax back in the spring, saying they needed to retain their large size, and profits, to compete against big foreign national oil companies from Russia, Saudi Arabia, Norway and China.Oil executives noted that oil prices, like other commodities, go through boom and bust cycles, and that the long-term profit margins at their companies are about aver
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